弹性光网络中距离自适应调制技术综述

Survey on distance adaptive modulation technique in elastic optical networks

距离自适应调制(DAM)技术作为提升弹性光网络(EONs)频谱资源利用率的关键技术,为应对网络数据业务量的急剧增加,该技术在EONs中的应用与改进受到众多研究者重视。首先针对DAM技术原理进行说明;其次介绍了DAM技术目前在EONs中的应用现状;最后对DAM技术改进的研究现状与关键问题进行阐述。

Distance adaptive modulation（DAM） is a critical technique to improve the spectrum resource utilization in elastic optical networks（EONs）. In order to cope with increase in network traffic volume, the implements and improvements of distance adaptive modulation technique have attracted the attention of many researchers. This paper firstly explains the principle of the technique. Furthermore, the implements of the technique in elastic optical networks are introduced and the improvements and pivotal issues of the technique are demonstrated at last.